https://bugzilla.redhat.com/show_bug.cgi?id=1272082
Bug ID: 1272082
Summary: Can't record archives without pmcd with Python PMAPI
Product: Fedora
Version: 23
Component: pcp
Assignee: nathans@xxxxxxxxxx
Reporter: myllynen@xxxxxxxxxx
QA Contact: extras-qa@xxxxxxxxxxxxxxxxx
CC: brolley@xxxxxxxxxx, fche@xxxxxxxxxx, lberk@xxxxxxxxxx,
mgoodwin@xxxxxxxxxx, nathans@xxxxxxxxxx,
pcp@xxxxxxxxxxx, scox@xxxxxxxxxx
Description of problem:
This one is firmly in the nice-to-have category.
pmlogger(1) can collect metrics without pmcd(1) using local DSO PMDAs with the
-o option. PCPIntro(1) states that @ as host has a special meaning, it refers
to PM_CONTEXT_LOCAL. However, when using pmgui.pmRecordAddHost, @ is used with
the -h option and pmlogger fails to start. Since adding -h is currently
hard-coded it's not possible, for example, to workaround this by adding -o with
pmgui.pmRecordControl/PM_REC_SETARGS. So it would be nice to pass "-o" instead
of "-h @" to pmlogger when the host is @.
For the above to be fully usable, it should probably be possible to pass -K
<spec> via the API as well. While PM_REC_SETARGS already should allow this, a
Python client started with -K can't query its own parameters for -K so
something like pmapi.pmGetOptionSpecLocal() would probably be needed.
I'm not entirely sure would this be worth the effort but let's at least
document the current situation here, just for the record.
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